MOOP!

R - *smells the rose* Wow! This totally makes up for it! *swoons*

You're a sensitive person. Case in point, what happened with that thing you told me about last night. I'm not like that, but I know plenty of people who are, and if you don't accept that some things are beyond your control it leads to much emotional pain. So instead of avoiding that pain the proper way, you cut it off at what your brain sees as the source: interactions with other people.
As well, your brain thinks that what you feel about others is reciprocated (I do that all the time). So you act towards them the way you wish they would act towards you--which is to close yourself off.

Your walls are intended to protect you from having to deal with other people's issues with themselves and with you, and to prevent other people from trying to deal with your issues (because you think they don't want to).

Not only is that logic flawed, but your walls protect too much too often and to the wrong people. Friends and family should be able to get in the gate, so to speak.

That's my shoot-from-the-hip psychology. Now I'm going to go revive Reth, I think he's fainted...